38 lines
679 B
Plaintext
38 lines
679 B
Plaintext
When all the elements in a Set are values from the same enum, the Set can be replaced with an EnumSet, which can be much more efficient than other sets because the underlying data structure is a simple bitmap.
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== Noncompliant Code Example
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----
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public class MyClass {
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public enum COLOR {
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RED, GREEN, BLUE, ORANGE;
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}
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public void doSomething() {
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Set<COLOR> warm = new HashSet<COLOR>();
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warm.add(COLOR.RED);
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warm.add(COLOR.ORANGE);
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}
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}
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----
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== Compliant Solution
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----
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public class MyClass {
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public enum COLOR {
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RED, GREEN, BLUE, ORANGE;
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}
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public void doSomething() {
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Set<COLOR> warm = EnumSet.of(COLOR.RED, COLOR.ORANGE);
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}
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}
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----
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